<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <div id="app">
    {{ message }}
  </div>

  <script src="./libs/vue.js"></script>
  <script>
    const vm = new Vue({
      el: '#app', // view
      data: { // model
        message: 'Hello world!!!',
        cart: [{
          id: 1,
          title: '商品标题'
        }],
        $money: 1111,
        _total: 2222,
      }
    })
  </script>
</body>
</html>